| 摘要 |
<p>Retaining mechanisms are normally utilized for securing a tooth to an adapter. Many times the forces necessary to secure the retaining mechanism in an assembled position is not high enough to maintain assembly during use. In the subject arrangement, the retaining mechanism (16) includes a pin (40) having a means (60) thereon for forming a shoulder and a plurality of conical spring washers (42, 44, 46) each having an inner surface (52) defining an opening (53) having a diameter of a predetermined size which is smaller than the outer diameter of the shoulder means (60). During assembly, the shoulder means (60) of the pin (40) is forced through the opening (53) of the respective conical spring washers (42, 44, 46) from a concave side (48) thereof. In order to disassemble the pin (40), the shoulder means (60) of the pin (40) must be forced through the respective openings (53). In instances where the pin (40) must be removed from the same side that it is installed, a much higher force is required to force the shoulder means (60) through the opening (53) of the respective first, second, and thrird conical spring washers (42, 44, 46). Consequently, a retaining mechanism (16) is provided which has very high resistance to inadvertent disassembly during use.</p> |
